[
  "Align the decimal points. Subtract each place value: ones, tenths, hundredths. No regrouping needed here.",
  "2.52 - 1.12: 2 hundredths - 2 hundredths = 0 hundredths. 5 tenths - 1 tenth = 4 tenths. 2 ones - 1 one = 1 one. Result: 1.40 = 1.4.",
  "2.52 - 1.12 = 1.4. Answer: 1.4."
]